[R] remove unused variable and data

[Jumlong Vongprasert]

  Dear All
     I have this
 > ls()
  [1] "IWJR.complete"        "IWJR.missing"         "IWJR.reg.temp"
  [4] "IWJR.reg.temp.x"      "IWJR.reg.temp.y"      "IWJR.temp"
  [7] "Power.record.100.3.5" "col.delete"           "correlation.100.3.5"
[10] "i"                    "index.temp"           "iterate"
[13] "j"                    "k"                    "list"
[16] "mean.100.3.5"         "poprho.3"             "row.delete"
[19] "sample.x"             "sample.x.y"           "sample.y"
[22] "variance.100.3.5"     "x.xbar.2"
 >
and I want to delete theme all, but do not remove "poprho.3".
How I can do this.

Many Thanks

Jumlong

-- 
Jumlong Vongprasert Assist. Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000